Outlook’s so-called “add-ins” were first introduced to the app this February, but the feature was exclusive to iOS. At least, it was, until Microsoft’s blog post today. To put it simply, it allows you to use features from apps like Trello, Evernote, or services like GIPHY from directly inside the app. It’s sort of like Android’s intents system, allowing you to quickly pass data between services, but built into Outlook.
Outlook for Android finally gets external app and service integration was written by the awesome team at Android Police.